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3 years ago

Round 0.641 to the nearest hundredth.

Mathematics

1 answer:

mixas84 [53]3 years ago

4 0

Answer:

0.64

Step-by-step explanation:

Find the number in the hundredth place 4 and look one place to the right for the rounding digit 1 . Round up if this number is greater than or equal to 5 and round down if it is less than 5 .

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What is the expanded form of this number?

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kondaur [170]

Answer:

a. 1.2 ohms

b. 6 ohms

Step-by-step explanation:

As with any problem involving evaluation of a formula, substitute the given values for the corresponding variables and do the arithmetic.

$R=\dfrac{1}{\dfrac{1}{R_1}+\dfrac{1}{R_2}}=\dfrac{1}{\dfrac{1}{2}+\dfrac{1}{3}}=\dfrac{1}{\left(\dfrac{5}{6}\right)}=\boxed{\dfrac{6}{5}=1.2}$

$R=\dfrac{1}{\dfrac{1}{R_1}+\dfrac{1}{R_2}}=\dfrac{1}{\dfrac{1}{10}+\dfrac{1}{15}}=\dfrac{1}{\left(\dfrac{5}{30}\right)}=\dfrac{30}{5}=\boxed{6}$

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<em>Comment on these problems</em>

You will notice that the values in part (b) are 5 times those in part (a). So, it is no surprise that the answer in part (b) is 5 times the answer in part (a).

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3 years ago

Write 0.345 as a fraction in simplest form and as a percent

Inga [223]

As a fraction is 345 over 10000 and in simplest form divide both by 5
that 69 over 2000. As percentage move two decimal place to the right, so it is %34.5

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Answer:

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Step-by-step explanation:

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200 divided by 54 times 15 times 6 equals?

svetoff [14.1K]

200 divided by 54 times 15 times 6 equals 333.3333

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3 years ago

Round 0.641 to the nearest hundredth. ​

Round 0.641 to the nearest hundredth.